Multiple-exposure attachment for cameras.



N. RUSK.

MULTIPLE EXPOSURE ATTACHMENT FOR CAMERAS.

APPLICATION rum) JUNE 4, 1912.

1,056,588. Patented Mar. 18, 1913.

llllllllt- Hlllllll f WITNESSES INVENTOR upon the same 'of the shutterand frame.

NEWTON RUSK, OF SAN DIEGO, CALIFORNIA.

MULTlPLE fixPo sURE ATTACHMENT FOR CAMERAS.

Specification of Letters Patent.

Patented Mar. 18, 1913.

Application filed June 4, 1912. Serial No. 701,625.

To all whom it may concern Be it known that I, NEWTON Rosa, :1 citizenof the United States, residing at San Diego, in the county of San Diegoand State of California, have invented certain new and usefulImprovements in' Multiple-Exposure Attachments for Cameras, of which thefollowing is a specification, reference being bad therein to theaccompanying drawing.

This invention relates to shutters for a camera, and has. for its objectthe production of an eliicient shutter which may be operated so as totake four different photographs plate of a person in four differentpositions.

Another object of this invention is the production of an efficientshutter which may be attached to a-camera in such a manner as to beefficiently operated, and at the same time not be in the way whiletaking a picture- With these and other objects in view, this inventionconsista of certainnovel constructions, combinations, and arrangementsof parts, as will'be hereinafter fully described and claimed.

In the drawings :Figure 1 is a plan view of the shutter while taking thepicture at one end of the plate. Fig. 2is a planview of the shutterwhile taking the second picture. Fig. 3 is a plan view of the shutterwhen taking the third picture. Fig. 4 is a plan view of the shutterwhile taking the fourth picture. Fig. 5 is arear elevation Fig. 6 is acentral vertical section through the shutter. Fig. 7 is a plan view ofthe outer shutter. Fig. 8 is a plan view of the inner shutter; Fig. 9 isa perspective view of the shutter supporting casing. Fig. 10 is a planview showing the photographs which may be taken by use of the presentshutter.

The present device is especially adapted to '1 be attached-to the lensof the camera, and

comprises a cylindrical body portion 1 which is provided near its rearedge ,with a plurality of bayonet slots 2 for constituting springtongues 3. These spring tongues are bent as indicated at 4 to allow thecasing 1 to fit tightly over the lens of a camera. It should beunderstood that these casings 1 may be formed of di ferent size toaccommodate the different cameras to be used in connection therewith. Acasing 1 is provided with a centrally transversely extending vided witha laterally extending foot 6 for firmly holding the rib 5 in engagementwith the casing 1. An inner shutter disk 7 pivotally secured upon thetransversely extending rib 5 by means of a pivot pin 8,

and an operating knob 9 is formed upon the outerperiphery of the shutterdisk 7 for facilitating the rotation of the shutter disk 7 upon thecasing 1. The inner shutter disk 7 is provided with a segmental aperture10 near one side and an elongated comparatively narrow slot 11 is formedadjacent the slot oropening 10. An outer shutter disk 12 is pivoted uponthe pin 8 similar to the disk 7, and this disk 12, like the disk 7 isprovided with an operating knob 13. A

with the opening 14, and upon the opposite side of the pivot 8 is formedan elongated co'mparatively narrow slot 15. It should be noticed that inthe disk 7 a comparatively-narrow opening slot 11 is formed upon thesame side of the pivot as the opening 10.

By considering Figs. 1 to 4 inclusive the operation of the device willbe clearly undersegmental opening 14 is formed near one side of the disk12 and extending parallel stood for upon taking the first picture, the

lens'z of the camera is opened, and the outer disk) 12 is rotated so asto have the opening 14 thereof register with' theopening 10 of the"inner disk thereby taking the picture marked A. -Then by again rotatingthe outer disk one-half turn, the comparatively narrow slot 15 of theouter disk will register with the slot 11 of the inner disk therebytaking the picture marked B to take the third picture, both the innerand outer disks are turned one-half way around to allow the slot 15 ofthe outer disk and the slot 11 of the inner diskto register but thistime upon the opposite side of the pivot point 8, thereby taking thepicture marked C.- The fourth picture is then taken by rotating theinner disk one-half revolution so as to have the aperture 14 of theouter disk register with the aperture 10 of the inner disk. By followingout .the letters A, B, C and D, with reference to the Figs. 1, 2, 3 and4 in connectionwith the pictures indicated in Fig. 10 it is thought thatthe operation of the device will be clear, especially from' theabovedescription.

device is especially adapted to take four In order shutter supportingrib which rib is pro- 1 photographs upon one plate or volume withv outshowing any dividing -lines thereon. It v should alsobe understood thata very simple ahd etliclent device has been produced which consists of aminimum number of parts which may be very cheaply manufactured andattaehed to any camera without the necessity of .rn'a'nufact'uring anespecially constructed camera to be used therewith;

hat is 'i'claimf ed is g 1. An attachment-for a camera adapted to takefour continuous pictures upon one sensitized plate comprisinga bodyprovided with means for holding the same upon a support, a plurality '0fshutters pivotally' secured upon said body, eachv shutter provided withapertures fdrmed therein adapt!- ed to register at'det'ermined times forcausing an exposure of a'portion of a sensitized plate for causing thephotograph'to be taken thereon.

2 'An attachment for a camera for the purpose specified comprising acylindrical body, a plurality of spring tongues formed upon said bodyand capable of engaging a support for holding said body upon saidsupport a transversely extending rib engaging said cylindrical body, aninner and outer disk pivotally secured to said rib and provided withspaced apertures adapted to reg ster at. specified tunes for causing anexposure of asensitized sheet at different points, as said inner andouter disks are rotated at (litter-cut times v 3. An attachnlent of theclass described cmnprising a casing, means for holding said casing uponii support, a rib carried by said disk.

casing, an inner disk dpivotally secured to said rib and-provide withasegmental ,pe'ning, said disk also provided with a comparatively narrowelon ated opening placed upon the same side 0% said pivot of said disk,as said segmental opening, an outer disk pivotally secured-upon saidtransversely extendin'grib and. provided with a segmental opening nearone side and provided with anelongatedcomparatively narrow opening uponthe opposite side of said pivotpoint of said"d isk,'.a'n operating knobformed upon each disk, said inner and; outer disks so arranged as. tocause said segmental opening of said outer disk to register with thesegmental opening 'oftheinner disk when being rotated one-halfturn' toexpose one end of a sensitizedisheet, cause said elongatedaperture ofsaid outer disk to reg- \Yitnesses:

A. RUSK, Geo. D. PAGE.

NEWTON RUISK'.

